Portable grinding-mill



' 2 Sheets-Sheet 1.

(No ModeL) 12.1103111511. PORTABLE GRINDING MILL.

No. 417,423. Patented Dec. 17, 1889.

' Mya 2 Sheets-Sheet 2.

(No Model.)

P. HOBLER. PORTABLE (mmm NG MILL.

No. 417,423. Patented Deo. 17, 1889.

new* l gil u. PETERS, mfouimrwher, wnmnmon, o( a UNITED STATES PATENT OEEICE.

'PETER HOBLER, OF CHICAGO, ILLINOIS.

PORTABLE GFilNDlNG-IVIILL.

SPECIFICATION forming part of Letters Patent No. 417,423, dated December 17, 1889.

Application filed October 16 1886.

To all whom it may concern.-

Be it known that I, PETER HOBLER, of Ohicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Portable Grinding Mills, of which the following is a full, clear, and exact description, such as will enable others to make and use the same, reference being had to the accompanying drawings, forming a part of this specification.

This invention relates to improvements in that class of portable mills that are more especially designed for the use of farmers in grinding dilferent kinds of grain; and the same consists of certain novel features in the construction, arrangement, and combination of the several parts, as will be hereinafter set forth and claimed.

Figure l is a vertical section of a mill embodying my improved features; Fig. 2, a View partly in section and partly in elevation, the parts in section being taken on the line 2, Fig. l, looking in the direction indicated by the arrow; Fig. 3, a broken side elevation and partial section of the lower part of the mill, the sections being taken on line 3, Fig. l; Fig. 4, a horizontal section of the mill-spindle B4 and the hub a", showing the manner of connecting the two. v

In the drawings, A represents a circular supporting-base; B B, the supporting-legs; B2,

. the driving-shaft, and B3 the grain-receiving hopper.

The circular base A has the auxiliary legs C C formed integral therewith, (see Fig. 1,) which curve inwardly and unite at the top to form' the step-box a for the lower bearing end of the vertical shaft or mill-spindle B4.

The lower ends of the main su pporting-legs B B are Widely extended and secured to the base-plate by the bolts a', the upper ends curving inwardly in the direction of each other and each having one-half of the casing a2, in-

- closing the grinding-rings, formed on top of the sanne. The bed-plate a3, to which the runner or lower grinding-ring C2 is secured, is rigidly mounted on the upper part of the vertical shaft or spindle B4.

The upper grinding-ring CS is rigidly secured to the adjustable cap a4 of the casing Serial No. 216,391. (No model.)

a2, as shown in Figs. 1 and 2. The cap a4 has a second or auxiliary hopper ai formed on the top of thesame.

' a6 is a third and .smaller hopper placed inside of the hopper a5, and whichV receives the grain from the main or receiving hopper thr'ough the spout d'1 The necessary vibra-- tory or shaking motion is imparted to the spout a7 by reason of the inner end engaging loosely with the crank-pin as, formed on the upper end of the vertical shaft or mill-spindle.

The hub a of the bed-plate asis provided with the spline am, which engages with the corresponding groove a in the upper part of the mill-spindle, whereby the lower grinding-disk may be slipped off from the upper end of said spindle, but rotates therewith.

The lower ends of the vertical boltsbb are inserted in the lugs b2, projecting from the inclosing-casing a2, while the upper ends pass through the ends of the arched bridge-bar b3. The ends of the bolts are threaded and provided With correspondingly-threaded adjusting-nuts. The hand-screw b4 passes through and has threaded engagement with the center` of the arched bar b3. The lower end of the screw is swiveled in the center of the companion arched bar b5, spanning the hopper a5. When rough adjustment is required, the yoke is raised or lowered by means of the bolts b b', and when slight adjustment is required it is done by means of the screws b4.

b is the spout through which the reduced product is discharged, and o7 a bag-holder of any desired kind attached to t-he same.

The lower end of the curved bracket-arm C4 is bolted to one of the main supporting-legs.

pinion D', serves not only as a balance-wheel, but protects the geared connection also by preventing matter from dropping into the same.

The upper journal-bearing E for the vertical shaft is inserted between and connects the supporting-legs at a point just underneath the casing inclosing the grinding-disks. By this arrangement a compact and durable structure is provided which may be transported with all its principal Working parts in position and ready for instant use.

The mill occupies but little space, and is so simple that it may be readily understood and operated by any one.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s-

l. Ina grinding-mill, the combination of the base A, having auxiliary legs C and C', curving upwardly and inwardly and uniting to grinding-disk secured to the bottoln or under side, the adj usting-bolts secured to the casing a2, the arch-bar b3, secured to the bolts, and an adj listing-screw secured to the arch 0'1"; the hopper and screwed through the arch-bar b3, substantially as described.

PETER IIOBLER. \Vit11esses:

L. M. FREEMAN, L. B. CoUrLAND. 

